N-Iodosuccinimide → 6-(2,6-dichloro-3,5-dimethoxyphenyl)-3-iodo-1H-pyrazolo[4,3-c]pyridine
Reaktionsgleichung
[Cl:1][C:2]1[C:7]([O:8][CH3:9])=[CH:6][C:5]([O:10][CH3:11])=[C:4]([Cl:12])[C:3]=1[C:13]1[N:18]=[CH:17][C:16]2[CH:19]=[N:20][NH:21][C:15]=2[CH:14]=1.[I:22]N1C(=O)CCC1=O>C(Cl)Cl>[Cl:12][C:4]1[C:5]([O:10][CH3:11])=[CH:6][C:7]([O:8][CH3:9])=[C:2]([Cl:1])[C:3]=1[C:13]1[N:18]=[CH:17][C:16]2[C:19]([I:22])=[N:20][NH:21][C:15]=2[CH:14]=1Komponenten
4
Versuchsvorschrift
At r.t. to a stirring solution of 6-(2,6-dichloro-3,5-dimethoxyphenyl)-1H-pyrazolo[4,3-c]pyridine (0.62 g, 1.9 mmol) in methylene chloride (10 mL) was added N-iodosuccinimide (0.47 g, 2.1 mmol). The mixture was stirred at r.t. for 2 h. It was concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column with ethyl acetate in hexanes (0-50%) to afford the desired product 0.50 g.